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The molecules present in L 6.5 of sulphu...

The molecules present in L 6.5 of sulphur dioxide at STP is

A

`1.5 xx 10^(23)`

B

`1.5 xx 10^(-23)`

C

`4 xx 10^(23)`

D

`0.15 xx 10^(23)`

Text Solution

Verified by Experts

The correct Answer is:
A
1 mole `SO_(2) = 64 g ` of `SO_(2)= 22.4L` of `SO_(2)`
`= 6.022 xx 10^(23)` molecules of `SO_(2)`
`therefore 22.4L` of `SO_(2)` contains `6.022 xx 10^(23)` molecules of `SO_(2)`
1L of `SO_(2)` contains ` = (6.022 xx 10^(23))/(22.4) ` molecules of `SO_(2)`
5.6L of `SO_(2)` contain ` = (6.022 xx 10^(23))/(22.4) xx 5.6` molecules of `SO_(2)`
`therefore` 5.6L of `SO_(2)` contains ` = 1.5 xx 10^(23)` molecules of `SO_(@)`
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